I got the o-rings and there are two per injector i figured out where the big-thin one goes but the small-fat one i have no idea of where it is supposed to go.
any ideas?

You do have the injectors out of the holders, yes?

NO they still attached. What´s the dif.?

The big thin one goes around the plastic injector cup and the small fat one goes around the injector itself and then it snaps into the cup.

Mark

Rally? I tried that and there was no way i´d get that to work being that the fat o-ring is way to fat to fit Inside the narower part of the injector hole. Hmmmm i´ll try agin.
Thanks much Mark

Toze

It seems like there may be a misunderstanding here. I did this job several months back so hopefully I can be of some help.

You replied that the injectors are still set inside the plastic holders that mount to the cylinder head, no? First, you need to separate the injectors from the holders. Easier said than done, in many cases. If you're lucky you can use the force of your hand to simply pull the pieces apart. More often, though, age and temperature changes result in these pieces being stuck together. That's what I found when I did mine.

The solution? Somebody posted a thread here containing a trick for this. Basically, you want to find a clean soft piece of wood, set it somehwere stable under the hood, put the injector nozzle side down perpendicular to the wood. Find and open ended wrench that will just fit over the body of the injector, and on top of the plastic holder. Use careful and smartly-placed taps with a hammer on the wrench to dislodge the holder and drive it down the length of the injector.

Do a search for this proecedure here, I'm sure that post is much better explained than mine. I owe my sanity to that post...

Don't be overly concerned about breaking the holders, as they are only a few bucks from FCP Groton. But do not get anything stuck on the nozzle end of the injector (dirt, grease, etc.) and stay away from excessive force with that hammer.

Injectors and holders all separated now? Good. On each injector you will see a groove that goes around the circumference. Get one of the small, fat seals, coat it with some gasoline for lubrication, and slide it onto the end of the injector until it is seated in this groove. Now pick up one of your holders. When you look inside you will see a corresponding groove. Take you injector with seal attached and slide it into the holder until the parts seat together. Some wiggling along with pressure will help accomplish this.

Now that this is done, take one of your larger, thin seals and seat it on the groove near the end of the holder. Again, some gasoline will help with lubrication. Take the entire assembly and seat it into the proper injector hole in the cylinder head. Wiggle a little as you're pressing down if you have to.

Once you're satisfied that the assembly is all the way in the hole, and seated properly, tighten the screw down on the injector holder. If the assembly is not seated all the way down in the hole you will crack the holder when you go to tighten the screw.

Hope I haven't been too long winded, but this seemingly easy job can really get to you if you're a first-timer like I was. Good luck!

Yap that was great.
Exactly what i need to know that i was going about it wrong. I was trying to get the small-fat o-ring to seal between the injector and the Head. and know i see that that o-ring goes in the holder itself.

Thank you lots. Oh and i did a search but search function does not work on this site. has not worked for a while.

Thank lots.

Here are three threads that deal with your issue. The last one contains the post I'm talking about...

http://www.brickboard.com/RWD/index.htm?id=407755&show_all=X

http://www.brickboard.com/RWD/index.htm?id=559948&show_all=1

http://www.brickboard.com/RWD/index.htm?id=810564&show_all=1


One last tip, if you haven't already done this, is to fold up a clean shop towel or rag and place it in between the injector tip and the board before you try the tap-with-a-wrench-and-hammer trick, to protect the tips of your injectors.

Good luck!